Activity
From 27 Feb 2015 to 28 Mar 2015
28 Mar 2015
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09:18 Slug #675: Matrix determinant over multivariate poly ring
- In my specific instance the direct algorithm (as alternating sum of products) would be best.
The problem with mult... -
- CoCoA can be too slow and require too much RAM for computing determinant of a matrix of multivariate polynomials.
...
26 Mar 2015
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- I am planning to implement a direct algorithm: each entry in the @adj@ is just a determinant, and each determinant is...
25 Mar 2015
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- Even @AdjByDetOfMinors@ takes too long for a 6x6 matrix of distinct indets. Why?
*2015-03-26 NOTE* I think the prob... -
- @adj@ is a very simple function: it chooses between @AdjByDetOfMinors@ and @AdjByInverse@.
What do you think @AdjB... -
- I do not recall when, but @adj@ has aleady been added to CoCoALib.
It has a *VERY BAD SLUG*: even after several mi...
04 Mar 2015
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- Factorizing in @F_q[x]@ is largely the same as factorizing in @F_p[x]@; the algorithm is essentially the same (but co...
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16:45 Feature #667: factor: multivariate + finite characteristic
- John Abbott wrote:
> The squarefree decomposition is the normal first step, but there are other problematic steps (_... -
- The squarefree decomposition is the normal first step, but there are other problematic steps (_e.g._ mapping down to ...
02 Mar 2015
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- (if I remember well)
The problem about factorizing a multivariate polynomial in finite characteristic was just the s...
27 Feb 2015
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- I now think that the problem may really be imprecise documentation.
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